[KSCI] Korea Science Citation Index Service

http://dx.doi.org/10.21219/jitam.2016.23.3.087

A TDOA Sign-Based Algorithm for Fast Sound Source Localization using an L-Shaped Microphone Array

Yiwere, Mariam (Department of Computer Engineering, Hanbat National University)
Rhee, Eun Joo (Department of Computer Engineering, Hanbat National University)

Publication Information

Journal of Information Technology Applications and Management / v.23, no.3, 2016 , pp. 87-97 More about this Journal

Abstract

This paper proposes a fast sound source localization method using a TDOA sign-based algorithm. We present an L-shaped microphone set-up which creates four major regions in the range of $0^{\circ}{\sim}360^{\circ}$ by the intersection of the positive and negative regions of the individual microphone pairs. Then, we make an initial source region prediction based on the signs of two TDOA estimates before computing the azimuth value. Also, we apply a threshold and angle comparison to tackle the existing front-back confusion problem. Our experimental results show that the proposed method is comparable in accuracy to previous three microphone array methods; however, it takes a shorter computation time because we compute only two TDOA values.

Keywords

Time Difference of Arrival; L-shaped microphone set-up; Sign of TDOA;

Citations & Related Records

Reference

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